PDF(Pubmed)
Abstract：
Microorganisms are critical to the stability of aquatic environments, and understanding the ecological mechanisms of microbial community is essential. However, the distinctions and linkages across biogeographic patterns, ecological processes, and formation mechanisms of microbes in rivers and lakes remain unknown. Accordingly, microbiome-centric analysis was conducted in rivers and lakes in the Yangtze River watershed. Results revealed significant differences in the structure and diversity of microbial communities between rivers and lakes, with rivers showing higher diversity. Lakes exhibited lower community stability, despite higher species interactions. Although deterministic processes dominated microbial community assembly both in rivers and lakes, higher stochastic processes of rare and abundant taxa exhibited in rivers. Spatial factors influenced river microbial community, while environmental factors drove differences in the lake bacterial community. This study deepened the understanding of microbial biogeography and formation mechanisms in large watershed rivers and lakes, highlighting distinct community aggregation patterns between river and lake microorganisms.
摘要：
微生物对水生环境的稳定至关重要，了解微生物群落的生态机制至关重要。然而,生物地理格局之间的区别和联系，生态过程，河流和湖泊中微生物的形成机制仍然未知。因此，在长江流域的河流和湖泊中进行了微生物组中心分析。结果表明，河流和湖泊之间的微生物群落结构和多样性存在显着差异，河流表现出更高的多样性。湖泊表现出较低的群落稳定性，尽管物种相互作用较高。尽管确定性过程主导了河流和湖泊中的微生物群落组装，河流中稀有和丰富类群的较高随机过程。空间因素影响河流微生物群落,而环境因素驱动了湖泊细菌群落的差异。这项研究加深了对大型流域河流和湖泊微生物生物地理和形成机制的认识，突出河流和湖泊微生物之间不同的群落聚集模式。
